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TransMedics Group, Inc.

TMDX
Exchange
Nasdaq
Industry
Electromedical & Electrotherapeutic Apparatus
SEC CIK
0001756262

In the last 90 days, TransMedics Group, Inc. insiders filed 1 open-market purchase and 0 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $2.31B in total; no superinvestor holds it.

13F holders, Q3 2023

Institutional positions in TransMedics Group, Inc. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
222
−17 vs. Q2 2023
Shares held
34.9M
+2.42M (+7.4%) vs. Q2 2023
Total value
$1.91B
−$816.9M (−29.9%) vs. Q2 2023
New holders
35
95 more added
Sold out
52
67 more reduced

1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting TMDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2023: 222 institutions
Q1 2021: 107 institutionsQ2 2021: 124 institutionsQ3 2021: 120 institutionsQ4 2021: 121 institutionsQ1 2022: 110 institutionsQ2 2022: 135 institutionsQ3 2022: 178 institutionsQ4 2022: 200 institutionsQ1 2023: 225 institutionsQ2 2023: 240 institutionsQ3 2023: 222 institutionsQ4 2023: 249 institutionsQ1 2024: 262 institutionsQ2 2024: 340 institutionsQ3 2024: 374 institutionsQ4 2024: 315 institutionsQ1 2025: 298 institutionsQ2 2025: 368 institutionsQ3 2025: 388 institutionsQ4 2025: 429 institutionsQ1 2026: 416 institutionsQ2 2026: 375 institutions
Value heldQ3 2023: $1.91B
Q1 2021: $773.0MQ2 2021: $623.5MQ3 2021: $636.5MQ4 2021: $384.7MQ1 2022: $561.4MQ2 2022: $719.7MQ3 2022: $1.18BQ4 2022: $1.79BQ1 2023: $2.26BQ2 2023: $2.73BQ3 2023: $1.91BQ4 2023: $2.76BQ1 2024: $2.52BQ2 2024: $5.09BQ3 2024: $5.74BQ4 2024: $2.30BQ1 2025: $2.63BQ2 2025: $4.93BQ3 2025: $4.17BQ4 2025: $4.53BQ1 2026: $3.63BQ2 2026: $2.31B
Institutions holding TMDX and their total value by quarter
QuarterHoldersValue
Q2 2026375$2.31B
Q1 2026416$3.63B
Q4 2025429$4.53B
Q3 2025388$4.17B
Q2 2025368$4.93B
Q1 2025298$2.63B
Q4 2024315$2.30B
Q3 2024374$5.74B
Q2 2024340$5.09B
Q1 2024262$2.52B
Q4 2023249$2.76B
Q3 2023222$1.91B
Q2 2023240$2.73B
Q1 2023225$2.26B
Q4 2022200$1.79B
Q3 2022178$1.18B
Q2 2022135$719.7M
Q1 2022110$561.4M
Q4 2021121$384.7M
Q3 2021120$636.5M
Q2 2021124$623.5M
Q1 2021107$773.0M

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q2 2023.

Institutions holding TMDX in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Bayesian Capital Management, LP20,435$1.12M0.13%+13,200+182.4%Added
Alberta Investment Management Corp19,889$1.09M0.01%+15,055+311.4%Added
Occudo Quantitative Strategies LP19,042$1.04M0.13%+10,548+124.2%Added
Principal Financial Group Inc18,071$989.4K0.00%−8,608−32.3%Reduced
Captrust Financial Advisors18,022$986.7K0.00%+321+1.8%Added
J.W. Cole Advisors, Inc.16,975$929.4K0.07%+16,975New
MetLife Investment Management16,548$906.0K0.01%00.0%Unchanged
American International Group, Inc.15,834$866.9K0.01%+563+3.7%Added
Manufacturers Life Insurance Company, The15,565$852.2K0.00%+2,885+22.8%Added
Nisa Investment Advisors, LLC15,542$850.9K0.01%00.0%Unchanged
Trexquant Investment LP15,133$828.5K0.02%−5,833−27.8%Reduced
Mirae Asset Global Investments Co., Ltd.14,940$818.0K0.00%+1,700+12.8%Added
Dark Forest Capital Management LP14,365$786.5K0.07%+14,365New
Aigen Investment Management, LP14,243$779.8K0.15%+14,243New
Janus Henderson Group PLC14,222$778.2K0.00%+20.0%Added
Two Sigma Investments, LP14,100$772.0K0.00%00.0%Unchanged
Oak Ridge Investments LLC13,034$713.6K0.09%−393−2.9%Reduced
EFG Asset Management (North America) Corp.12,954$708.8K0.17%+2,544+24.4%Added
Voya Investment Management LLC12,670$693.7K0.00%+123+1.0%Added
AtonRa Partners12,287$672.7K1.41%−179−1.4%Reduced
Millrace Asset Group, Inc.11,882$651.0K0.80%−1,958−14.1%Reduced
Raymond James Financial Services Advisors, Inc.11,737$642.6K0.00%−2,404−17.0%Reduced
Park Avenue Securities LLC11,729$642.0K0.01%+442+3.9%Added
Mount Yale Investment Advisors, LLC11,699$640.5K0.07%+119+1.0%Added
Man Group plc–$618.7K0.00%–New
Stifel Financial Corp11,272$617.2K0.00%−1,472−11.6%Reduced
Point72 Middle East FZE10,988$601.6K0.04%+10,988New
Pacific Capital Partners Ltd10,897$596.6K0.36%+10,897New
Victory Capital Management Inc10,533$576.7K0.00%+1,529+17.0%Added
Bridgewater Associates, LP10,341$566.2K0.00%+405+4.1%Added
Group One Trading, L.P.10,268$562.2K0.02%+10,268New
HighTower Advisors, LLC10,227$553.0K0.00%+2,057+25.2%Added
Franklin Resources Inc9,547$522.7K0.00%−349−3.5%Reduced
Arizona State Retirement System9,269$507.5K0.00%+131+1.4%Added
Millennium Management LLC9,105$498.5K0.00%−15,936−63.6%Reduced
State Board of Administration of Florida Retirement System9,063$496.2K0.00%+60+0.7%Added
Oppenheimer & Co Inc8,991$492.3K0.01%−3,599−28.6%Reduced
M&T Bank Corp8,623$472.2K0.00%+2,368+37.9%Added
D.A. Davidson & Co.8,612$471.5K0.01%+59+0.7%Added
Shariaportfolio, Inc.8,582$470.0K0.37%+8,582New
Henshaw Capital LLC8,247$451.5K0.03%+3,071+59.3%Added
Harbour Capital Advisors, LLC8,231$450.6K0.14%+1,190+16.9%Added
Los Angeles Capital Management LLC8,125$444.8K0.00%−235−2.8%Reduced
Truist Financial Corp7,755$424.6K0.00%+2,167+38.8%Added
Cetera Investment Advisers7,585$415.3K0.00%+235+3.2%Added
Advisory Services Network, LLC7,544$413.0K0.01%+515+7.3%Added
Montanaro Asset Management Ltd7,150$391.5K0.07%−850−10.6%Reduced
Citigroup Inc6,982$382.3K0.00%−5,573−44.4%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)6,913$378.5K0.00%+763+12.4%Added
Verition Fund Management LLC6,902$377.9K0.01%+6,902New
Legato Capital Management LLC6,814$373.1K0.05%−30,529−81.8%Reduced
Courier Capital LLC6,655$364.4K0.03%00.0%Unchanged
Blair William & Co6,544$358.3K0.00%+6,544New
Walleye Trading LLC6,128$335.5K0.01%+5,373+711.7%Added
AQR Capital Management LLC6,080$332.9K0.00%−1,369−18.4%Reduced
Numerai GP LLC5,846$320.1K0.11%−13,880−70.4%Reduced
Lakeview Capital Partners, LLC5,529$302.7K0.06%−3,646−39.7%Reduced
HRT Financial LP5,438$297.0K0.00%−4,080−42.9%Reduced
Pitcairn Co5,335$292.1K0.02%−1,277−19.3%Reduced
Handelsbanken Fonder AB5,000$274.0K0.00%00.0%Unchanged
ExodusPoint Capital Management, LP5,001$274.0K0.00%+5,001New
Arcadia Investment Management Corp4,861$266.1K0.06%+83+1.7%Added
Amalgamated Bank4,777$262.0K0.00%00.0%Unchanged
Financial Perspectives, Inc4,709$257.8K0.12%00.0%Unchanged
Schonfeld Strategic Advisors LLC4,500$246.4K0.00%+526+13.2%Added
Clough Capital Partners L P4,313$236.1K0.03%+4,313New
Public Employees Retirement Association of Colorado4,319$236.0K0.00%00.0%Unchanged
ProShare Advisors LLC4,231$231.6K0.00%−18−0.4%Reduced
Pictet Asset Management Holding SA4,146$227.0K0.00%+4,146New
Simplex Trading, LLC4,052$221.0K0.01%+4,052New
Raymond James & Associates3,742$204.9K0.00%−2,079−35.7%Reduced
State of Wisconsin Investment Board3,726$204.0K0.00%−4,046−52.1%Reduced
Envestnet Portfolio Solutions, Inc.3,710$203.1K0.00%+3,710New
Tower Research Capital LLC (TRC)3,478$190.4K0.01%+2,596+294.3%Added
US Bancorp3,291$180.2K0.00%−2,362−41.8%Reduced
Headlands Technologies LLC3,282$179.7K0.09%+3,282New
Ameritas Investment Partners, Inc.3,152$172.6K0.01%+532+20.3%Added
Van Eck Associates Corp2,127$116.0K0.00%+597+39.0%Added
Metropolitan Life Insurance Co1,829$100.1K0.01%+96+5.5%Added
RiverPark Advisors, LLC1,104$60.4K0.05%+1,104New
GWM Advisors LLC1,074$58.8K0.00%−545−33.7%Reduced
First Horizon Advisors, Inc.827$45.3K0.00%−205−19.9%Reduced
KBC Group NV767$42.0K0.00%+767New
Cutler Group LP700$38.0K0.01%+700New
Global Retirement Partners, LLC720$37.8K0.00%+720New
Comerica Bank626$34.3K0.00%+626New
The PNC Financial Services Group, Inc.608$33.3K0.00%+10+1.7%Added
MCF Advisors LLC586$32.1K0.00%+37+6.7%Added
Central Trust Co550$30.1K0.00%00.0%Unchanged
Lindbrook Capital, LLC511$28.0K0.00%+180+54.4%Added
Ancora Advisors, LLC500$27.4K0.00%00.0%Unchanged
Adirondack Trust Co460$25.2K0.01%00.0%Unchanged
Oakworth Capital, Inc.412$22.6K0.00%00.0%Unchanged
NBC Securities, Inc.347$18.0K0.00%+347New
Newbridge Financial Services Group, Inc.300$16.4K0.01%00.0%Unchanged
Huntington National Bank297$16.3K0.00%−58−16.3%Reduced
Signaturefd, LLC278$15.2K0.00%+49+21.4%Added
Oliver Lagore Vanvalin Investment Group243$13.3K0.01%−21−8.0%Reduced
CWM, LLC217$12.0K0.00%+58+36.5%Added
Contravisory Investment Management, Inc.212$11.6K0.00%00.0%Unchanged